A UV-shielding, Hydrophobic and transparent coating was developed to improve the weathering resistance properties of wood materials while maintaining the natural aesthetic texture of the wood. Graphitic carbon nitride nanosheets (gCNNS) were used as nontoxic and metal-free UV absorber. Cellulose nanofibril (CNF) was selected as an environment-friendly and renewable film-forming carrier, which addressed the issues of agglomeration and low composite adhesion of gCNNS on the wood surface. The gCNNS/CNF composite coating was formulated on the wood surface via spin coating method. The following hydrophobic treated by thermal chemical vapor deposition (CVD) method was to solve the problem of rainwater erosion in outdoor application. After 15-day accelerated weathering tests, the total color change of the treated sample was 79.6% lower than that of the untreated one. Our newly-designed environment-friendly and weathering resistance coatings will be applied to a wide variety of substrates in the future.

开发了一种防紫外线、疏水和透明的涂层，以提高木材的耐候性，同时保持木材的自然美感。石墨氮化碳纳米片（gCNNS）被用作无毒和无金属的紫外线吸收剂。纤维素纳米原纤维（CNF）被选为一种环保且可再生的成膜载体，解决了gCNNS在木材表面的团聚和复合粘附力低的问题。gCNNS/CNF 复合涂层是通过旋涂方法在木材表面配制的。以下通过热化学气相沉积（CVD）方法进行疏水处理，以解决室外应用中的雨水冲刷问题。经过 15 天的加速老化试验，处理后样品的总颜色变化为 79。比未处理的低6%。我们新设计的环保和耐候涂料未来将应用于各种基材。